Tamper indicator for a locking seal
First Claim
1. An improved device for visually indicating an attempt to tamper with or defeat a locking seal;
- the seal being of the type having a body which receives and prevents the removal therefrom of an inserted member;
the device having a frangible, brittle shroud adapted to overlie the body;
the device also having a frangible, brittle flange on the shroud and adapted to overlie portions of the member at or near its point of reception in the body, the shroud and the flange cracking, chipping or fracturing upon the application of low force to the exterior of either thereof or between the flange and the member during an attempt to tamper with or defeat the seal;
wherein the improvement comprises;
means responsive to an attempt to remove the body from the shroud while the portion of the member which the flange overlies is retained in the body for cracking, chipping or fracturing the flange or the shroud.
3 Assignments
0 Petitions
Accused Products
Abstract
A tamper-indicating seal of the type having a bolt retained in a lock body, wherein the lock body is surrounded by a shroud of frangible, brittle material and provided with a grooved outer surface and flanged entrance way for receiving and surrounding the bolt end, whereby the shroud is easily fractured, thus providing visual indication of tampering. Visual detection of tampering may be enhanced by a coating applied to the outer surface of the shroud. A surface feature on the between its point of entry into the lock body and its point of entry into the flange is in interfering relationship with a surface feature within the flange, so that an attempted removal of the lock body from the shroud is indicated by cracking, chipping, or fracturing of the flange or the shroud.
111 Citations
19 Claims
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1. An improved device for visually indicating an attempt to tamper with or defeat a locking seal;
- the seal being of the type having a body which receives and prevents the removal therefrom of an inserted member;
the device having a frangible, brittle shroud adapted to overlie the body;
the device also having a frangible, brittle flange on the shroud and adapted to overlie portions of the member at or near its point of reception in the body, the shroud and the flange cracking, chipping or fracturing upon the application of low force to the exterior of either thereof or between the flange and the member during an attempt to tamper with or defeat the seal;
wherein the improvement comprises;means responsive to an attempt to remove the body from the shroud while the portion of the member which the flange overlies is retained in the body for cracking, chipping or fracturing the flange or the shroud. - View Dependent Claims (2)
- the seal being of the type having a body which receives and prevents the removal therefrom of an inserted member;
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3. An improved device for visually indicating an attempt to tamper with or defeat a locking seal, the locking seal being of the type having a lock body which receives an inserted bolt end and within the lock body for preventing removal of the inserted bolt end;
- the device having a frangible, brittle shroud adapted to surround the lock body;
the device also having a frangible, brittle flange integral with the shroud and having a bore adapted to surround the bolt at its point of entry of its end into the lock body, the shroud and the flange cracking, chipping or fracturing upon the application of low force to the exterior of either thereof or between the flange and the bolt during an attempt to tamper with or defeat the seal by removing the bolt from the lock body or by inserting a removal-preventing-means-defeating object into the passageway;
cracking, chipping or fracturing of the shroud or the flange providing a visual indication of an attempt to tamper with or defeat the seal;
wherein the improvement comprises;means responsive to an attempt to disassociate the lock body and the shroud while the end of the portion of the bolt which is surrounded by the flange is retained in the lock body for cracking, chipping or fracturing the flange or the shroud. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
- the device having a frangible, brittle shroud adapted to surround the lock body;
Specification